Ice-cream-hardening room



April 1, 1925. 1,532,936

J. G. P ECK ICE CREAK HARDENING ROOM Sheets-Sheet 1 INVENTOR Jicoe 6. fit-ch- ATTORNEY April 7, 1925. 1,532,936

J. G. PECK V ICE CREAM HARDENING ROOM Filed Nov. 7, 1924 4 Sheets-Sheet 2 INVENTOR (l mos 6! fee/r ATTORNE'Y April 7, 1925.

J. G. PECK ICE CREAM HARDENING ROOM 4 shew-shat 4 Filed Nov. 7,1924 I INVE-NTOR Ill (#1005 G PEch' Ill T VIATTO'RNEY '35 possible expense of handling; to provide a of Figure 2.

Patented Apr. 7, 1925. p p I i p UNITED STATES PATENT. Foal-"ion.

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Application filed li'ovember 7, 1924. Serial no. 748,458. a

To all whom it may concern 4 conducted without causing a rise in the tem- Be it known that I, JAcon G. PEcK, a perature of the room. v citizen of the United States, residing at Other objects of the invention will be- Portland, in the' county of Multnomah and come apparent to those skilled in the art as State of Oregon, have invented certain now {he construction and operation ofthe invenon and useful Improvements in Ice-Greamion is developed hereinafter. Hardening Rooms, of which the following Generically the invention comprises a is a specification. v unit consisting of a room having insulated My invention relates to the art of refrigfloor, walls and 'roof or 'ceiling, within 1 eration and it especially has for its object to which is disposed a set of skeleton racks for provide a refrigerating room for use in ice the ice cream containers and above which cream plants into which the cans or. other racks is located a brine pan that contains the containers of ice cream may be placed for 'defrostingliquid in which and above whichthe purpose of bringing their temperature the refrigerating coils are located, means 15 down low enough ,to harden the contents. being provided to pump the brine from the Among the objects of the invention are pan over the tops of the coils for defrosting also to provide a hardening room which, purposes,andother'means being provided to while employing expansion coils, is of such prevent the brine s lashing over and getting arrangement and construction as to give down onto the rac s and their contents.

20 complete control to ,the defrosting of the More subordinately invention also resides coils and in such manner as not materially in those novel structures, combinations and to raise the room temperature while the arrangements of parts, which will be heredefrosting'operation takes place; to provide inafter fully described, andthen be specifidefrosting means which-will not require re- 'cally pointed out in the appended claims,

25 moval of the ice cream cans or containers reference being had to' the accompanying from the room during the time the. defrostdrawings, in which I ing takes place; to provide for positive air Figure 1 is a perspective view,'(parts becirculation purified by calcium and by ciring broken away) ofa preferred embodiculating all around the ice cream containers, ment of my invention.

thus ensuring quick hardening and uniform Figure 2 is a central vertical longituditemperature; to provide means whereby the nal section of the same. ice cream containers can be handled more Figure 3 is a horizontal section on the line rapidly and more efliciently, enabling them, 3,3 of Figure 2. to be assorted and delivered with the least Figure 4 is a cross section on the line 4-4 structure with direct expansion cooling coils Figure 5 isanelevatio-n of a modification. set in a pan within the room, which coils are Figure 6 is a plan view of said modifica: used and operated under a flooded system tion.

employing the accumulator with or without In the drawings, in which like numerals 40 interior liquid cooling coils and connected of reference designate like parts in all the either by means of a check valve or by the figures, 26 designates the floor, 27 the walls liquid as it rises in the accumulator, turnand 28-the roof of the room in which is loing=back through the suction line to the cated the racks 24 for the containers25 coils, coming in contact with the same liquid; the cooling and defrosting apparatus.

45 .to eliminate suction and liquid headers, en- Within the room is located a brine tank 1 10" abling the use of one expansion and one sucsupported on transverse I-beams 36 and to tion valve only; to provide for defrosting gether with the non-insulated bafiie floor 31, the coils by the use of cold brine taken from constituting a sub-ceiling for the storage a pan located above the storage racks and space of the room. 2 designates the defrost- 50- beneath the cooling coils, the brine being ing pipes which extend from the defrosting taken from the pan and discharged over the header 3 over the expansion coils 7, the latcoils, means being provided to prevent ter being located in'tiers with their lower splashing the brine down into that portion sections emersed in brine within the pan or ofthe room below in which the ice cream tank 1.,-

' 65 containers are located, the defrosting being 4 is the-brinepipe which leads from the 7 brine circulating pump" to'the helader 3, comprises a complete unit consisting of a the pump 5 receiving the brine through a refrigerating room in which is located the suction'line-6,the entrant e'nd ofwhich is direct expansion coils set into a metallic immersed in the brine in thetank or ,pan 1. I

8 indicates the suction line from the exmg and in which is included t e removable pansion coils 7 in which line. there is located shelving to ,hold the ice cream containers. the suction valve 9. 10 is 'the accumulator The tank l'and coils? do not constitute and 11 the suction line from theacc'umulator a bunker system. to the corn ressornotsshown). in the refrigerating room -a d by the pan 12 is the iquor line in which is contained containing the brine for de osting it will the ex ansion valve 13 and through which act asa container of cold, giving practically.

the re rigerating liquor is conducted to the uniform temperatureat all times. Fi'irtherexpansion coils. 14 is a fan housing whlch more the provision of the front battle wall communicates with the interior of the cbil .20 and the .side partitions 21. that extendcompartment through the. opening in. the. down into the brine within the'tank l and front partition wall 20, the latter having run from t ere up to the ceiling of the room,

the operators door 29 and the entrance door any brine is prevented from splashing oven 30 for obvious purposes. 15 is" the fan during the defrosting operation, and. by

which draws the air from the coil compartlocating the place of air intake and air outment and delivers it into a discharge duct let as shown the. air. is caused to'travel'the down into the storage compartment of the coils and this airis also defrosted by means room at one side. of the brine defrosting pump pumping the .18 is the return duct having openings 19 for receiving the air from the storage comcoils (controlled by gatevalves froma comtank which is supported by an le iron frana- By being set directly 7 v '16 having openings 17 for" passing the air full length and across the directexpansion partment of the room and discharging it momheader 3) thus giving a; full circulato the rear of the coil compartment and preftion of the. air without resistance.

erably at a place diagonal to theientrancea to the fan housing 14,so' that the flow of directly outsidethe room'where' it is easy air caused by the fan circulation .will be as to get at and the brine control valves and indicated by the arrows in Figure 1. fan are-all located in positions easily at:-

' Side baflle walls 21 are provided and these cessible.

walls extend the full length of the pan or It will also be noted that my constructank 1 and their bottoms are immerse withtion the calcium brine pan or tank is located R above the duct 18 which aidsin heat insulathe refrigerant cbirculationfis L of entrance to the place of exit.

in the liquid within the pan 1. These bafiies' directly over the ice cream container racks It is to be noted that the pump isplaced' 21 extend to the top or ceiling of the room and; as this tank. has from six to ten inches I and one of them extends clear to the back of calcium chloride brine in the same, which wall as shown in the left in Figure 1, while is kept very cold by part f the coils being the other terminates shortof the back wall submerged in the brine, the brine inthe to permit air-discharge from the duct- 18, pan is at all times below the temperature of but i h a ie 'fll x nsion 21 to the side the room and therefor it acts as a hold-over wall,thereby providihg a dead airspace '21 refrigeratingmedium for the room when v clig ofl from tion. A dead air space is also" provided bethe ipe? as during the defrost g interval. tween-the bafiie 21, in the left in Figurel, It is.also important to note that in iny arand the adjacent wall 'as indicated by 21 rangementthe defrosting operation takes for the, same purpose, or if. desired the place through the use of cold brine, and baflies 21 may terminate short of the back brine which is always located within the room wallso that the space 21 will rommunicate and is never at a temperature above that of at thebnck with the coil chamber proper. the roem,-hence the defrosting operation can p 22 designatesthe pump motor and 2 3 the be conducted more freely (i. e., at shorter fan motor while the ice cream containers are intervals) than under the usual practice with indidated by 25 and their stbra'ge shelving F1 1 J system becausepf the clean condition of the In Figures 5 ahd 6 is showna slight modiexpansion coil pipes. p ficationiofthe invention in which battles 3'1 In practice I find that the defrosting op- 7 extend across the coil chamber 'and- .altereration, if conducted approximately once a -nately extend from the bottom toward the week, is suiiicient though 'it,.may be contop and from the top towardthe bottom to ducted at shorter intervals or longer inrovide a zigzag' passage for the circulattefrvals as conditions may warrant. IIIg ZUP OVBI' the 0011 surfaces from the place The brine during the defrosting operation It will be noticed from the foregoing dekeeps them-entirely free from frost. there- SCIlPtlQni taken in connection with the'acby giving the highest possible efficiency of companying drawings, that myinvention radiating sarface and giving free and una result of a more. eflicient operation of the delivering over-the direct expansion coils...

the storage space of the room also acts as room, a

a cooling agent, thus adding. to the efficiency of the system; Again the air circulating-over the brine in'the tank 1 is purified'by the brine and chilled in'passing the expansion coils and brine tank, enabling the temperature of the room to be easily carried at a uniform rate of from zero to ten below zero R, which by experimentation has been" found to be the best temperature .for'the freezing of ice cream. V

With the use of my invention employing the removable iron shelves and'supports the ice cream cans and brick molds can be-handled more rapidly and efiiciently, more readily assorted and delivered to the trade with the least' possible expense of handling; all available space is utilized to the best advantage and more ice cream per unit of room can be installed than has heretofore been possible by the use of those rooms now generally employed.

From the foregoing description, taken in connection with the accompany ng drawings, it is thought the complete construction, and advantages of the invention will be clear to those skilled in the art.

What I claim is:

. 1 In ice cream hardening rooms, a room. having an insulated floor,walls and ceiling,

extending horizontally. in said brine pan held on said supports, 'a horizontalbaflie extending around the pan to the walls of the room, said baflle havin room, vertica ba'files at the sides of the pan, the bottoms of which battles project into the pan, expansion coils mounted over the pan in tiers, the

supports lower tiers lying within the pan, an inlet air, duct located at one side of the pan to receive the air from the chamber beneath.

and deliver it to the rear of the coils, an outlet air duct located'at the other side of the pan to deliver air to the chamber beneath, a fan for drawing the air fromthe room beneath through the inlet air duct and passing it over and between the expansion ipe coils and delivering it to the outlet air uct for delivery back into the lower chamber; substantially as shown and described.

2. In ice cream hardening rooms, a room having an insulated floor, walls and ceiling,

supports extending horizontally,- in said room, a brine pan held on said supports, a

horizontal baffle extending around thepan to the walls of the room, said bafiie having air ports at the sides of the room, vertical baflies at the sides of the pan, the bottoms of which bafiles project into the pan, expandelivery over the coils.

' against splashing ove 4; separating chamber, a said upper chamber,

sion coils mounted over the pan in tiers, the

lower tiers lying within the pan, an inlet,

air duct located at one side of the" pan to i receive the aii from the chamber beneath 1 and deliver it to the rear oi the coil's,gan outlet air duct located at the other side of the pan to deliver air to the :chamber'bneath, a fan for drawing the air from the sion let air duct for delivery back into the lower.

chamber, defrosting pipes located above the expansion coils. -and means for pumping brine from the tank to the said'pipes for 3.In refrigeratmg rooms," a

chambeig'a transverse vertical baflie across said upper chamber, a. horizontal bafile floor between the front wall of said room and said transverse vertical battle, skeleton racks in the lower chamber=for holdin g t-he ice cream brine from the tank and'delivering it to the the lower ones. ofi which are imbrine. pan f I separating the room into an upper and lower defrostin ducts, means forcirculating air L through to room 'from the lower-{chamber into the upper chamber over and among the coils and. ackflagain thelow'er chamber, and means restraining he defrosting brine into the lower efrigerating' rooms, a-brine' pan the room into an upper 31nd ,lower transverse vertical baflle across a horizontal baflie floor between the. frontwall of said room and said transverse vertical baflle, skeleton racks in the lowerchamber for holdingthe ice cream containers, expansion coils in said vupper chamber, the lower ones of which are immersed in the brine tank, defrosting ducts located above the coils to discharge their contents over the coils, a pum for drawing'brinefrom the tank and de ivering it to gitudinal vertical baflies at" the sides of the tank and extending from the transverse vertical baflie wwarathe ppposite wall of the 1 25 room. a

' 5. In refrigeratin rooms, abrine pan separating the room into an upper and lower chamber, a transverse vertical baflie across said upper chamber, a horizontal baflle floor between the front wall of said room e a per chamber over and among to the lower cham- 'means 'restraining [the defrosting brine' against splashing over into the lower chamber, said restraining means comprising 1on gitudinal vertical bafliesatthe'sideszof the tank and extending from the transverse ver+ tical baflie toward the opposite wall of'the room, said circulating means comprising air ducts at each side of the upper chamber with ports communicating with the'lower chamber, .one'of said ducts delivering the air from the lower chamber into the upper chamber at one corner, a fan for drawing theair froms'aidcorner through and over the coils toward the diagonally opposite I coils and delivering it to the other duct for stantially as shown and described.

6-. A refrigerating room composed of in passage back'into the lower chamber, subsulated floor, walls and ceiling with a'similar insulated vestibule in communication with the lower part of said room, a horizontal partition bafiie dividing said room into an upper and lower chamber and having a brine pan opening, skeleton shelving within the, lower chamberto receive the containers of material to be chilled,'f-a brine I pan heldin said opening and abovesaid shelvin vertical transverse and longitudinal be e walls in the upper chamber at the frent .andj side of said pan, refrigerating coils in said upper chamber and located -over said pan, portions ,0 certain of said coils extending into the pan to chill the contents thereof, means to circulate a refrigerantithrough said coils, and means for drawing air'from saidlower chamber atone side into sa1d upper chamber and delivering it to the colls at one corner, causing it to pass over and around the coils to the diagonally opposite corner and then delivering the air back into the lower chamber at the side opposite to which it left the lower chamber, substantially as specified.

7. A refrigerating room composed ofin? sulated floor, walls andvceiling with a similar insulated vestibule in communication with the loyver part of said room, a horizontai partition baflle dividing ,said room into an upper and lower chamber and having a brine pan opening, skeleton shelving within the lower chamber to receive the containers of material to be chilled, a brine p n held in said opening and a ovenid shelving, vegtical transverse and longitudinal bafiie walls in.the upper chamber at the front and side of said pan, the sidebafiies extendingfrom within the pan to the chilling of the room-and the front baflie extending across the width ofthe room from the horizontal partition to the ceiling of the room. refrigerating coils in said upper chamber and located over said pan, portions of certain of said coils extending into the pan tochill the contents thereof, means'to circulate a, refrigerant through said coils, and means for drawing air from sald'lower chamber atone side into sa1d upper chamber and delivering it to the coils atone corner causing it to pass over andraround the coils to the diagonally opposite corner andthefi I delivering the air back into the lower cham-- ber at the side opposite to which it left the lower chamber, substantially as shown and described.

8. A refrigerating room composed of insulated floor. walls and ceiling a similar insulated vestibule in communication with the lower part of 'saidroom, a 'hori-' zontal partition baflle dividing said room intoanupperand lower chamber and having a brine pan opening,-skeleton shelving within the lower chamber'to receive the containers of material to be chilled, a brine pan.

\ held in said opening and above said shelving, vertical. transverse and longitudinal baffle walls in the upper chamber at the front-and side of said p coils in said up er chamber and located over said pan, portions of certain of said coils refrigerating extending into the pan to chill the contents j thereof, means to circulate a refrigerant through said coils, and means for drawing airfrom said'lower chamber at one side into said upper chamber and delivering it to the coilsat one corner, causing .it'topass over and around the coils to the diagonally opposite corner and then delivering the air ack into the lower chamber at the side opposite to which it left the lower chamber, defrosting ducts located over the coils, an a pump to pump the brine from the tank to the defrosting ducts forjdefrosting purr poses. g

9. A refrigerating room composed of insulated floor, walls and ceiling with a similar insulated vestibule in communication with the lower part of said room, a horizontal partition baflie dividing said room into an upper and lower chamber and having a brine pan opening, skeleton shelving within the.

lower chamber to receive the containers of material to be chilled, a brine an held in said opening andrabove said she ving, vertica-l transverse and longitudinal baflle- "walls in the upper chamberat the front and side of said pan, refrigerating coils in said upper chamber and located over said an, portions f rt m of sod co1lsextenngmtothe pan to chill the contents thereof, means to circulate a refrigerant through said coils, and means for drawing air from said lower chamber atone side into said upper chamv 5. ber and delivering it to the coils at one coring ducts located in the back compartment adjacent to said partition, said vertical transverse partition having a door to give access to said valves, the front wall of the room also having'a doorto permit entry into said front compartment. 10. A refrigerating room composed'of insulated floor, walls and. ceiling with a similar insulated vestibule in communication with the ,lowerpart of said room, a horizontal partition baffle dividing said room into an upper and lower chamber and having a brine pan opening, skeleton shelving within the lower chamber to receive the containers of material'to be chilled, a brine pan held in said opening and'above said shelving, vertical transverse and longitudinal baflle walls in the upper charnber at the front and side of said pan, refrigerating coils in said uptions" ofcertain of said coils extending into the an to chillthe contents th'ereof,means to circulate a refrigerant through said coils, and means for drawing air from said lower chamber at one side into said upper chamber and delivering it to the'coils at one cor- 4 ner, causing it to pass over and around the coils to the diagonally opposite corner and then delivering'the air back into the lower the lower chamber, defrosting ducts located over the coils, a pump to pump the brine from the 'tank'to the defrostin ducts for defrosting purposes, said vertica transverse bafile partitions dividing said upper, chamber into a front and back compartment, a-

header and control valves for said defrost- /in' ducts locatedin the back 'compartment 5!; ad acent to said, partition, said vertical header and control valves for said defrost.

per chamber and located over said pan, porchamber. .atlthe,side opposite to which it left sulated floor, walls and ceilingwith a simi-" lar insulated vestibule in communicationwith the, lower part of said room, a horizontal partition baffle dividing'said room into an upper and lower chamber and having a brine pan opening, skeleton shelving with,

in the lower chamber to receive the con tainers of material to be chilled, a brine pan held in said opening and above said shelving, vertical transverse and longitudinal baflie' walls in the upper chamber at the front and side of said pan, refrigerating coils in said upper chamber and located over a the coils at one corner, causing it to pass.

over and around thecoils to the diagonally opposite corner and then delivering the air back into the lower chamber at the side op- 'posite to "which it left the lower chamber, defrosting ductslocated over the coils, a pump to pump the brine from the tank to the defrosting-ducts for defrosting purposes,

said vertical transverse" baffle'partitions dividing said upper chamber into a front and back compartment, aheader and control valves for said defrosting ducts located in the back compartment adjacent to said artition, said vertical transverse partition having. a door to give access to said valves, the front wall of the room also having a door to permit entry into said front compartment, a vestibule at the front of the room withan entrance door from the outside, said room'- having a doorcommunlcating w1th the vestibuleasaid vestibule being of a heighth approximating that of the lower chamber, the roof of said vestibule constituting a support for the defrosting pump and'a motor for operating the same.

12. In refrigerating rooms, a brine pan separating he room into an upper and lower chamber, a transverse vertical-baflle across.

said upper chamber, a horizontal baffle floor between the front wall of said room and said transverse vertlcal 'bafiie, skeleton racks in the lower chamber for holding the ice cream containers, expansion coils. in said upper. chamber, defrosting ducts located above the coils to discharge their contents over the.

coils, a pump for drawing brine from the tank and delivering it to the defrosting.

ducts, means for circulating air \through the room from the lower chamber into the upper chamber over and amon the coils and back again to the lowei' cham er, and meansrestraining the defrosting brine against splashing over into the lower chamber.

JACOB e PECK. 

